Winding machine



' :lune 17 1924;A

Filed April 6 Fatented .inne 17, 1924.

UNITED STATES ALBERT BELZ, or UNTER-soufron, SWITZERLAND.

- WINDING MACHINE.

Application filed April 6,

To all 'whom t may concern:

Be it known that I, ALBERT BELZ, a citizen of the Republic of Switzerland, residing at Unter-Goldach, Ct. St. Gall, Switzerland, have invented certain new and useful Improvements in Winding Machines, of which the; following is a specification, refer,- ence being had therein to the accompanying drawing. f r v The present invention relates4 to improvements in Vwinding machines and particularly to winding machines for the manufacture of bobbins having paper cores. That is to say the machine first makes the paper core, tube or quill, and then winds the thread upon it,delivering a full or loaded quill ready for use' in the embroidery or other machine.

Winding mandrils' provided witho'ne slot are known into which slot a strip of paper' is introduced for manufacturing spools or bobbins with papercores.' i

The output as well as the reliability of winding machines `fitted with mandrils of the above type ishowever reduced as the mandril or the slot respectively has to be brought always .into exactly the sameV po-v sition when starting to make a lnew bobbin, that is to say the mandril hasy to be turned sometimes throughnearly' a complete revolution. f f y This disadvantage is overcome' by the subject matter of the, present inventionbyproviding the mandril with a plurality of slots so that the mandril has to be turned through only an amount not'greater than the pitch of the slots in order to be able `to insert the paper, this turning motion being 4automatically eifected by separate organs.

A constructionalf example of the subject matter ofthe present invention is illustrated on theV accompanying drawings in which:

Fig. 1 is a side view of' a winding chine, i

Fig. 2 is a front view, i

Fig. 3 is a section along the line III- III ofFig.1,f 5` 4' 1 Fig. 4is a section along the line'lV-IV Fig. 5 -isa section along the line'V-V of Fig. 1 on an enlarged scale, and

Fig. 6 shows an enlarged perspective view of a detail. L y Y In these drawings,'1 denotes the driving shaft of the` winding machine." On this driv- 1923. `Serial No. 630,342.

ing shaft 1 are fixed the wheel 2 of a friction bevel' gear 2, 3 and the worm 4 of a worm driveI 4, 5. 6 denotes the windingmandril which is provided with a number of longitudinal slots 6a, as will be seen from F ig'. 5. On the mandril shaft the wheel 3 with the disc 7 secured thereto is fixed `The toothed disc 7 has the same pitch as the slots in the mandril.- `The mandrilshaft is rotatably mounted in the support 8. The sup# port 8 is adapted to be displaced along the rods 9, 10 and isprovided with a roller 114 it`takes part in the rotation ofthe latter but is displaceable in the longitudinal direction ofthe shaft, a circular groove 15 being pro-` vided on the-part 14. Rollers 17 mounted on the forked lever f 16 engage with the groove 15. The lever 16 is turnable about the fulcrum pin 18 and is connectedby means of 'a tension spring 19 to a lever 2O which is turnable about a pin21.` A roller 22 bearing against an end facing of the coupling part 14 is rotatably'mounted on the lever 20. The lever 2O is further provided with an arm 23 which has aslot 24, engaging a bolt 26 iixed to a lever25, the latter beingturnably mounted about a pin 18. A compression spring 27 urges the lever25. constantly againsta sleeve-28 provided with aout-out portionf28L (Fig. 6 In alignment with theV shaft `12 a shaft 29 is ar ranged to Awhich the worm wheel 'of the worm gear 4,5 and the part 30 of the coupling arevfixed. Y

A pin 31 is fixed to a bracket arm of the support 8V (Fig. 2), the pin 32b serving'as fulcrum to a lever'32. The free end of the lever isv Ysituated below the Atoothed disc 7 and is provided with a prong 33 shaped as' a wedgey pointing in the upward ldirection and projecting into the `path of the .teeth of thef-disc7. Furtherpa ywedge-shaped prong 34 is fixed to the lever 82 adapted to turn the toothed disc 7 Whenthe point4 of a tooth of the latter contacts with'the edge of the cam 33. i Y

l After the bobbin, the thread lof which is wound upon a paper spool of the mandril 6, is finished, a pull is exerted on the rod 281 either by hand or by known `means which are rendered operativev when a determined now with the cut-out part of the sleeve 28 isA urged in the upward direction by the action of the compression spring 27, the arm 23 taking part in said upward turning move-Y ment, whereby the bolt 26 acts in the slot 24- thus causing the lever r2O to be turned in the clockwise direction. In this manner an aXial displacement in thel direction of the arrow B (Fig. 4) is imparted to coupling part 14 whereby the latter is brought in engagement with the constantly rotating coupling part and is thus rotated, the shaft 12 being then coupled with the shaft 29.y The roller 11 which up to this moment has been resting in the lowest part of the end facing of the cam disc 13 moves on tothe highest part of said facing of the cam disc 13 whereby a displacement of the mandril 6 in the direction of the arrow C occurs, the supports 8 gliding along the rods 9, 10. Upon this axial displacement of the Y support 8 the rotating friction wheel 3 is brought out of engagement with the frictionwheel` 2 and is caused to bear against a spring loaded brake 35, whereby the mandril 6 is brought to a stand-still. During the further slow rotation ofthe cam disc 13 in the direction of the arrow D 2) the roller 11' leaves the highest point of the cam facing of the cam disc 13 and bears on the rsecond highest point of said cam facing. Thereby the toothedV disc 7 and the friction wheel 3 are moved away from the brake 35 but the wheel 3 is still out of engagement with the friction disc 2. N ow the cam facing 36 on the periphery of the cam disc 13 co-,operates with the lever 32a rigidly connected vto the lever 32 and imparts to the latter a turning motion in the direction of the arrow E (Fig. 2), thereby the toothed disc 7 is turned by means of the prong 33 until the latter is able to penetrate into a space of tooth of the disc 7. VAs soon as this is the case one of the slots of the mandril 6 is in a determined position, for instance in a position in which a strip of paper for making the paper spool can be inserted.

Upon further rotation of the cam disc 13 the lever 32a runs 0E the cam facing 36 whereupon the cam 33 leaves the space of tooth. The support 8 with the mandril and friction wheel 3 are moved towards the'friction wheel 2 by the action of the spring 37V the mandril has taken up the determined position. The clutch parts llt and v30 are thereafter disengaged, asV the highest part of of the cam facing 38 coacts with the Vroller 22 causes thereby a turning motion of the leve-r 20, 23 in the anticloclmise direction, whereby the action of the slot 24 on the pin 26 causes the arm 24 to be depressed and the coupling part 14 to move away from the coupling part 30. The above described operation may then start again.

I claim:

1. In a winding machine, a driving friction wheel and a sliding frame, a slotted mandrel, a toothed disc and a driven fric-V tion wheel all mounted in andV sliding with said frame, to move said driven friction wheel radially of `said driving friction wheel, mechanism to slide said frame and mechanism brought into operation upon sliding said frame to arrest'said disc and then position the disc to set one of the slots of the mandrel in receiving position.

2. In a winding machine, a driving friction wheel and aV sliding frame, a slotted mandrel, a toothed disc and a driven friction wheel all mounted in said frame and moving therewith, to move the driven friction wheels radially ofthe driving wheel into and out of operation therewith, a cam to shift saidy frame, 'clutch mechanism from which said cam is periodically driven, a brake shoe againstfwhich the driven wheel is moved when disengaged from the'driving wheel and means operated by said' cam to stop said disc and then position it to bring a mandrel slot into receiving position when said clutch is disengaged.

3. In a winding machinein combination, a mandrel adapted to make a spool by winding a strip of paper and providedV with a plurality of longitudinal slots. into one of which the end of a paper strip is to be inserted, a shaft tovwhich said mandrel is fixed, a frame part'in which said shaft is rotatablymounted, and adapted to be displaced in the axial direction of said mandrel, a driving shaft, a friction gear interV posed betweensaid driving shaft and said mandrel shaft, said friction gearrbeing rendered inoperative by a displacement of said frame part, a toothed disc coaXially arranged with said mandrel and having a number of teeth corresponding to the number of slots in said mandrel, a prong adapt-- ed to enter into a space of toothfof said disc, a swingably arranged lever carrying' said prong on its free end, a cam disc, means operatively connected t-o said lever and1 c ooperating with said camdisc for causing said prong to enter into a space ofv a tooth for fixing the mandrel in a position in which a slot occupies a determined position, 'and further means adapted to `control the operation of said first means and' to cause'aV disllO placement of said frame part for rendering said friction gear inoperative previous to causing the action of said prong.

4. In a Winding machine, in combination, a mandril adapted to hold a spool and provided with a plurality of longitudinal slots, a toothed disc coaXially arranged With said mandril, and having a number of teeth corresponding to the number of slots in said mandril, a prong adapted to enter into a space of tooth of said disc, a swngably arranged lever carrying said prong on its free end, a cam disc, means operatively connected to said lever and co-operating Withsaid cam disc for .causing said prong to enter into a space of a tooth for fixing the mandril in a'position in which a slot is in a determined position, and further means adapted to control the operation of said rst means. y

In vtestimony whereof I aix my signature.

ALBERT BELZ. 

